Canon has unveiled its latest ultra-wide-angle zoom lens for its full-frame mirrorless cameras, the RF 16-28mm F2.8 IS STM, ...

The third lens corrects the distortion from the first two and flattens the rays onto the image plane. From US Patent US20170299845A1 Then we abruptly go to something like this. Look at the lenses.

For distortion, I don’t mind whether the lens performs well optically or relies on automatic in-camera correction, which is increasingly the case with mirrorless designs. These things can be ...

DZOFilm has announced its new X-Tract 18-28mm T8 FF Probe Zoom Lens. We have now started to see quite a few companies making ...